package com.zpy.config;

import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Component
public class LoginInterceptor implements HandlerInterceptor {
	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
		Object currentUser = request.getSession().getAttribute("currentUser");
		if (currentUser==null){
			request.setAttribute("msg","请先登录");
			request.getRequestDispatcher("/index.html").forward(request,response);
			return false;
		}else {
			return true;
		}

	}
}
